College Lab – Week 1 – Week of 1/16/06 College Lab -- Week 1 Objectives - Concept: OXYGENATION : related to alterations in pulmonary ventilation and diffusion Use assessment parameters

NURSING 120

College Laboratory Guide

Fall 2011

Student Name___________________________

2

College Lab -- Week 1

Objectives - Concept: OXYGENATION : related to alterations in pulmonary

ventilation and diffusion

Use assessment parameters appropriate for determining the characteristics and severity of

the major symptoms of respiratory dysfunction.

Identify the nursing implications of procedures used for diagnostic evaluation of

respiratory function.

Compare and contrast upper and lower respiratory tract infections with regard to cause,

incidence, primary prevention, clinical manifestations, and collaborative management.

Use the nursing process as a framework for care of the pediatric patient with: Otitis

media; tonsillitis; croup syndrome.

Use the nursing process as a framework for care of the adult patient with: pneumonia;

tuberculosis

Describe the nursing process as a framework for the care of the patient with a

tracheostomy.

Demonstrate the procedure for tracheostomy care and suctioning.

Topics covered in readings and theory class:

Readings: Theory:

OXYGENATION : related to alterations in pulmonary ventilation and diffusion

Exemplar: Care of Patients with Impaired Ventilation – Respiratory Diagnostic Testing

Care of Pediatric and Adult Patients receiving Immunizations

Care of Pediatric with impaired ventilation related to upper respiratory infections

Exemplars: Care of Pediatric & Adult Patients with Tonsillitis

Care of Pediatric Patients with Croup Syndromes

Care of patients with impaired ventilation related to lower respiratory infections

Exemplars: Care of Patients with Pneumonia Care of Patients with Pulmonary Tuberculosis

Skills/Demonstration/Return Demonstration:

Tracheostomy Care

Assessment: Adventitious breath sounds related to respiratory infections.

Computer-Assisted Learning - Evolve Learning Web sit at http://evolve/elsevier.com/Iggy/.

Videotape “Performing Respiratory Assessment” (Springhouse, 2002) – (30 mins) complete questions &

discuss

Critical Thinking –

Medication Administration:

Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8th ed.) St. Louis: Elsevier Mosby.

Ratio & Proportion – Adult and Pediatric Oral and Parenteral Medications – Review

Med-Surg Nursing:

Ignatavicius, Donna & Workman, M. Linda (2010) Critical Thinking Study Guide to accompany

Medical-Surgical Nursing Critical Thinking for Collaborative Care

Acid-Base Balance Case Study

Respiratory Tract Assessment Case Study

Care of the patient with tracheostomy

3

Exemplar: Care of the Patient with pneumonia - (fill in correct response):

1. List 7 possible causes of Atelectasis:

2. List 7 possible clinical manifestations of Atelectasis:

3. List 7 nursing interventions that can be used to prevent Atelectasis:

4. The diagnosis of hospital-acquired pneumonia is usually associated with the

presence of one of three conditions:

1.

2.

3.

5. Name three common pathogens that cause community acquired pneumonia:

1.

2.

3.

6. Pneumonia tends to occur in patients with one or more of these underlying

disorders:

1.

2.

3.

4.

5.

7. Three complications of pneumonia include:

1.

2

3

4

Week 1 Math – Ratio & Proportion

Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8

th ed.) St. Louis: Elsevier Mosby.

Problem

Compute the amount of medication that will be given to administer one dose of the following

medication orders by using a proportion to obtain your answers.

Assume all tablets are scored, when necessary. Round all parenteral administration orders that are

over 1 mL to one decimal place. Round all parenteral administration orders under 1 mL to two

decimal places. Do not include zeros at the end of decimal numbers.

The problems and drug orders are presented for practice only, and actual prescribed dosages will vary

according to a patient’s age, condition, reaction, additional medications, and other factors.

1. Order: Axid 0.3 g p.o. at h.s.

Supply: Axid 150 mg capsules

Give: __________ capsules

2. Order: Amoxil 0.25 g p.o. q.8h

Supply: 80 mL bottle of reconstituted Amoxil oral suspension, 125 mg/5 mL

Give: __________ mL or __________ teaspoons

3. Order: Augmentin 375 mg p.o. q.8h

Supply: 75 mL bottle of reconstituted Augmentin, 250 mg/5 mL

Give: __________ mL

4. Order: Klonopin 500 mcg p.o. t.i.d.

Supply: Bottle of 100 tablets of Klonopin, 0.5 mg per tablet

Give: __________ tablet(s)

5. Order: nitroglycerin gr SL stat

Supply: 0.4 mg and 0.6 mg tablets

Give: __________ tablet, give __________ tablet(s)

6. Order: vitamin B12 100,000 U IM qd. for 3 days

Supply: 2 mL vial of vitamin B12 with 50,000 U/mL

Give: __________ mL

5

7. Order: thiamine HCl 20 mg IM t.i.d.

Supply: 10 mL multiple dose vial of vitamin B1 (thiamine HCl) 100 mg/mL

Give: __________ mL

8. Order: ascorbic acid 150 mg IM qd.

Supply: 2 mL ampule of vitamin C (ascorbic acid) 250 mg/mL

Give: ___________ mL

9. Order: heparin 7500 U SC q.8h

Supply: heparin 10,000 U/mL

Give: __________ mL

10. Order: methylprednisolone acetate 100 mg IM once per week

Supply: methylprednisolone acetate suspension, 80 mg/mL

Give: ___________ mL

6

Ratio & Proportion

Answer Section

PROBLEM

1. ANS:

2. ANS:

3. ANS:

4. ANS:

5. ANS:

Select 0.6 mg tablets, and give 1 tablet

6. ANS:

7. ANS:

8. ANS:

9. ANS:

10. ANS:

7

College Lab – Week 2

Objectives: Concept: OXYGENATION : related to alterations in pulmonary

ventilation and diffusion Discuss the major risk factors for developing obstructive airway and lung problems. Use the nursing process as a framework for care of pediatric and adult patients with chronic

airflow limitation – asthma. Use the nursing process as a framework for care of the adult patient with obstructive lung

disease – emphysema and chronic bronchitis. Describe self-management strategies for patients asthma, including medications. Develop a teaching plan for patients with obstructive airway disease.

Topics covered in readings and theory class: Unit 1B – OXYGENATION related to alterations in pulmonary ventilation and diffusion

Care of patients with impaired ventilation related to obstructive airway and lung problems.

Exemplars: Care of Adult and Pediatric Patients with Asthma

Care of Adult Patients with Chronic Obstructive Lung Disease Chronic Bronchitis / Emphysema

Skills/Demonstration Assessment: Breath Sounds (cont’d)

Tracheostomy care and suctioning (cont’d) Nebulizer Treatment - bronchodilators Oxygen therapy – T-piece; Trach mist collar; Venti-mask


Videotape

“Pediatric Assessment” (Wiley & Wong, 1996) (from library (20 mins)

“Pediatric Medication Administration” (from library) (35 mins)

Critical Thinking – Medication Administration Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8


Pediatric & adult dosage based on body weight

Med-Surg Nursing:



Care of the patient with noninfectious upper respiratory problems

8

Week 2:

Exemplar: Care of the Patient with acute and chronic obstructive lung problems:

(fill in correct response)

1. Chronic airway inflammation in COPD results in:

2. Define the term emphysema:

3. A genetic risk factor for COPD is:

4. Primary symptoms associated with the progressive disease of

obstructive lung disease are:

5. List major factors that determine the clinical course and survival of patients with

obstructive lung disease:

6. The single most cost effective intervention to reduce the risk for developing COPD or

slow its progression is:

7. List three ways that bronchodilators relieve bronchospasm:

8. Primary causes for an acute exacerbation of COPD are:

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9. To help prevent infections in patients with COPD, the nurse should recommend

vaccination against two bacterial organisms:

10. The strongest predisposing factor for asthma is:

11. The most common symptoms of asthma include:

12. Complications of asthma include:

Exemplar: Care of the Patient with Emphysema Case Study:

Maria, who has had emphysema for 25 years, is admitted to the hospital with a diagnosis

of bronchitis.

1. During assessment, the nurse notes the presence of a ―barrel chest‖’, which

the nurse knows is caused by:

a. A compensatory expansion of the bronchial airway.

b. A decrease in intrapleural pressure,

c. “air trapping” in the lungs.

d. A progressive increase in vital capacity.

2. The nurse recognizes the need to be alert for the major presenting symptom

of emphysema, which is:

a. Bradypnea.

b. Dyspnea.

c. Expiratory wheezing.

d. Fatigue.

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3. Arterial blood gas measurements that are consistent with a diagnosis of

emphysema are:

a. pH 7.32; paO2 70mm Hg; PaCO2 50 mm Hg.

b. pH7.37; PaO2 90 mmHg; PaCO2 42 mm Hg.

c. pH 7.39; PaO2 80 mm Hg; PaCO2 35 mm Hg.

d. pH 7.40; PaO2 85 mmHg; PaCO2 42 mm Hg.

4. Oxygen is prescribed for Maria. The nurse knows that the most effective

delivery system is:

a. A rebreathing bag that delivers oxygen at a concentration grater than 60%.

b. An oxygen mask set at 8 L/min.

c. A nasal cannula set at 6l/MIN.

d. A Venturi mask that delivers a predictable oxygen flow at about 24%.

5. In planning care for Maria, which interventions are best to implement?

(Select all that apply)

a. Provide rest periods between activities, such as bathing, meals, and ambulation.

b. Place the patient in a supine position after meals to allow for rest.

c. Schedule drug administration around routine activities to increase adherence to

Arrange chairs in strategic locations to allow the patient to walk and rest.

d. Encourage the patient to have an annual flue vaccination.

11

Week 2 Math: Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8th

ed.) St.

Louis: Elsevier Mosby. Pediatric Weight-Based Problems

Math Problem:

Compute the requested information. Round all parenteral administration orders that are over 1 mL to

one decimal place. Round all parenteral administration orders under 1 mL to two decimal places. Do

not include zeros at the end of decimal numbers.


according to a patient’s age condition, reaction, additional medications, and other factors.

Use the following information about a child and his order to compute answers.

A pediatrician has ordered Ampicillin 50 mg/kg/day p.o. divided q.6h for a child who weighs 44 lb.

1. How many kilograms does the child weigh? __________ kg

2. How many milligrams should the child receive per dose? __________ mg

3. How many milligrams should the child receive per day? __________ mg

4. The pharmacy has supplied reconstituted Ampicillin, with a supply dosage of 500 mg/5 mL.

How many milliliters should be given per q.6h dose? __________ mL

Use the following information about a child and her order to compute answers.

Mandy, a child who weighs 15 kilograms, is to be given amoxicillin. The recommended dosage of

amoxicillin for children is 20 to 40 mg/kg/day p.o. in equally divided doses administered q.8h.

5. What is the recommended range of milligrams of medication for this child per q.8h dose?

minimum: __________ mg maximum: __________ mg

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6. The pediatrician has ordered amoxicillin 125 mg p.o. q.8h for Mandy.

The available supply of amoxicillin is 125 mg/5 mL.

Is her order within the recommended range for this medication? (yes/no) __________

If so, how many mL of amoxicillin should be given per q.8h administration? __________ mL

7. How many teaspoonfuls of amoxicillin should be given per q.8h administration? __________ t


The recommended dosage of Rocephin is 50 to 100 mg/kg/day divided into two equal doses. The

physician has ordered Rocephin 200 mg IM b.i.d. for a child who weighs 5000 g. The Rocephin

vial contains 1 g of medication that must be reconstituted with 3.6 mL of diluent to yield 1 g/4

mL

8. Compute the recommended minimum and maximum amount of milligrams that the child should

receive per day.



receive per dose.


10. Is the order within the recommended range? (yes/no) __________

If so, compute the number of milliliters of Rocephin that should be administered per dose.

___mL.

13

Pediatric & Adult Dosages Based on Body Weight

Answer Section

PROBLEM

1. ANS:

2. ANS:

per day, 20 kg

3. ANS:

q.6h every 6 hours, which is given 4 times per day.

4. ANS:

5. ANS:

q.8h every 8 hours, which is given 3 times per day.

per day minimum

per day maximum

6. ANS:

Yes, 125 mg per dose is within 100 mg to 200 mg per dose.

7. ANS:

5 mL 1 t

8. ANS:

per day, minimum

per day, maximum

14

9. ANS:

per dose, minimum

per dose, maximum

10. ANS:

Yes, the ordered amount of 200 mg per dose, b.i.d. is within the recommended range of 125 mg

to 250 mg per dose, given twice per day.

15


Objectives – Unit IIIA - OXYGENATION –

related to alterations in cardiovascular tissue perfusion and cardiac output

Evaluate patients at risk for cardiovascular problems.

Perform focused cardiovascular assessment on patients at risk for CV disease.

Describe the pathophysiology, risk factors, and clinical manifestations in patients with

altered cardiovascular tissue perfusion.

Implement the nursing process for adult patients with altered cardiovascular tissue

perfusion related to cardiovascular risk factors and hypertension.

Discuss the indications, intended effects, and nursing implications of medications in the

care of adult patients with altered cardiovascular tissue perfusion related to

cardiovascular risk factors and hypertension.

Describe a medication teaching plan for the patient with hypertension. Topics covered in readings and theory class: Readings: Theory: Alterations in cardiovascular tissue perfusion and cardiac output

Care of patient with impaired cardiovascular tissue perfusion – Cardiovascular Risk

Factors

Exemplar: Care of Patient with Impaired Cardiovascular tissue Perfusion – Hypertension

Skills/Demonstration

o IV flush; primary IV tubing set up and function; secondary IV tubing setup and

function

Assessment: Cardiac


Videotape

Performing Cardiac Assessment – (Springhouse, 2003) (35mins) – complete NCLEX

questions.

Critical Thinking – Medication Administration Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8


Chap 14 – IV Solutions and IV Flow Rate Calculations

Med-Surg Nursing:



Care of the patient with cardiovascular risk factors Care of the patient with hypertension

16

Week 3: Exemplar: Care of the Patient with cardiovascular risk factors –

hypertension:

1. Blood pressure is the product of ________________ multiplied by ___________.

2. Cardiac output is the product of ________________ multiplied by ___________.

3. Prolonged hypertension can cause significant damage to blood vessels in four

―target organs‖:

4. List serious consequences prolonged, uncontrolled hypertension on the body

and its systems:

5. Give examples of conditions that can trigger a hypertensive emergency in which

blood pressure must be immediately lowered:

6. List 7 modifiable risk factors for coronary artery disease:

7. Management of coronary artery disease requires a therapeutic range pf

cholesterol and lipoproteins. An acceptable blood level of total cholesterol is

______, with an LDL/HDL ratio of ________ . The desired level pf LDL should

be ________ mg/dL, and the HDL level should be greater than _______ mg/dL.

Triglycerides should be less than _______mg/dL.

17

Case Study: George, a 45 year old has primary hypertension after serial blood

pressure readings average 150/98.

1. Renal pathology associated with hypertension can be identified by:

a. Urine output greater than 2,000 mL in 24 hours.

b. A urine specific gravity of 1.005.

c. Hyponatremia and decreased urine osmolality.

d. Increased blood urea nitrogen and creatinine levels.

2. Health education for George includes advising him to:

a. Adhere to his dietary regimen.

b. Become involved in a regular of exercise.

c. Take all medication as prescribed.

d. Do all of the above.

3. George was prescribed the following angiotensin-converting enzyme (ACE)

inhibitor, which has a rapid onset of action within 15 minutes.

a. Ramipril (Altace)

b. Captopril (Capoten)

c. Benazepril (Lotensin)

d. Enalapril (Vasotec)

4. An example of a potassium-sparing diuretic tat might be prescribed later in

the treatment of hypertension includes:

a. Spironolactone (Aldactone)

b. Hydrochlorthiazide (HCTZ)

c. Metolazone (Zaroxolyn)

d. Furesomide (Lasix)

5. The nurse is assessing for postural hypotension recognizes that the following

is a positive sign:

a. A heart rate of 5 to 20 beats per minute (bpm) above the resting rate

b. A n unchanged diastolic blood pressure

c. An increase of 10mm Hg reading

d. An decrease of 5 mm Hg reading

18

Care of the patient with coronary artery disease:

1. An example of a beta blocker, administered to decrease automaticity, is

frequently prescribed for patients with coronary artery disease includes:

a. Diltiazem (Cardizem)

b. Amiodarone (Cordarone)

c. Metoprolol (Lopressor)

d. Propafenone (Rythmol)

2. A non-modifiable risk factor for atherosclerosis is:

a. Stress

b. Obesity

c. Positive family history

d. Hyperlipidemia

3. The first heart sound is generated by:

a. Closure of the aortic valve

b. Closure of the atrioventricular valves

c. Opening of the atrioventricular vales

d. Opening of the pulmonic valve

19

Match the terminology associated with coronary atherosclerosis in column II with

its function/characteristic listed in column I:

Column I:

1. _____ A principal blood lipid

2. _____ A risk factor that causes pulmonary damage

3. _____ The functional lesion of atherosclerosis

4. _____ Biochemical substances, soluble in fat, that accumulate within a blood

vessel.

5. _____ A risk factor that is endocrine in origin.

6. _____ A risk factor associated with type A personality

7. _____ A risk factor related to weight gain.

8. _____ A recommended dietary restriction that is a risk factor for heart disease

9. _____ A symptom of myocardial ischemia

10. _____ A lifestyle habit that is considered a modifiable risk factor for heart

disease

Column II

a. Atheroma

b. Obesity

c. Chest pain

d. Cholesterol

e. Inactivity

f. Lipids

g. Smoking

h. Diabetes

i. fat

j. stress

20

Week 3 Math – Calculating IV Solution Rates

IV Solutions & IV Flow Rate Calculations

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

1. A patient’s order for IV fluid states that NS is to be infused. Which of the following IV fluids

should be given?

a. 0.9% Sodium Chloride c. 0.225% Sodium Chloride

b. 0.45% Sodium Chloride d. 5% Dextrose

2. A patient’s order for IV fluid states the D5W is to be infused. Which of the following IV fluids

should be given?

a. 5% Dextrose with Normal Saline c. 5% Dextrose with 0.45% Sodium Chloride

b. 5% Dextrose with Lactated Ringer’s

Solution

d. 5% Dextrose

3. A patient’s order for IV fluid states that D5NS is to be infused. Which of the following IV fluids

should be given?

a. 5% Dextrose c. 5% Dextrose with 0.9% Sodium Chloride

b. 0.9% Sodium Chloride d. Lactated Ringer’s Solution

4. A patient’s order for IV fluid states that D5LR is to be infused. Which of the following IV fluids

should be given?

a. 5% Dextrose with Lactated Ringer’s

Solution

c. 5% Dextrose with 0.225% Sodium

Chloride

b. 5% Dextrose and 0.45% Sodium Chloride

with 20 mEq KCl/L

d. 0.45% Sodium Chloride

5. What is the ratio of the weight of dextrose to the volume of IV fluid in D5W?

a. 5 grams of dextrose to 1 liter of IV fluid c. 5 milligrams of dextrose to 1 liter of IV

fluid

b. 5 milligrams of dextrose to 1 milliliter of

IV fluid

d. 5 grams of dextrose to 100 mL of IV fluid

6. What is the ratio of the weight of sodium chloride to the volume of IV fluid in NS?

a. 0.9 grams of sodium chloride to 100 mL

of IV fluid

c. 0.9 grams of sodium chloride to 1 liter of

IV fluid

b. 0.009 grams of sodium chloride to 1

milliliter of IV fluid

d. 0.9 milligrams of sodium chloride to 100

mL of IV fluid

21

Guide for calculating IV rate in mL/hr and gtts/min:

IV Amount Time Rate per Hour Amount/T x drip factor* = gtts/min

Drip factor for large volume IV = 15 gtts/mL; for Blood: 10 gtts/mL

1000mL 12 hrs 83 mL/hr 83/60 x 15 = 20.8 or 21 gtts/min

1000mL 10 hrs 100mL/hr 100/60 x 15 = 25 gtts/min

1000mL 8 hrs 125 mL/hr 125/60 x 15 = 31 gtts/min

1000 mL 7 hrs 143 mL/hr 143/60 x 15 = 36 gtts/min

Problem The following IV orders will be regulated by electronic infusion devices. Calculate the flow rates of

the IV fluids in mL/h. The problems and drug orders are presented for practice only, and actual

prescribed dosages will vary according to a patient’s age, condition, reaction, additional medications,

and other factors.

7. 1200 mL D10W IV to infuse in 10 hours by infusion pump Flow rate: ___________ mL/h

8. 1.5 L D5 NS IV to infusion 20 hours by controller Flow rate: __________ mL/h

The following IV orders will be regulated manually. Calculate the flow rate of the IV fluid in

gtt/min.

9. 1 L NS IV to infuse in 10 hours

The drop factor is 10 gtt/mL. Flow rate: __________ gtt/min

10. 1000 mL D5W IV to infuse in 8 hours


22

IV Solutions & IV Flow Rate Calculations

Answer Section

MULTIPLE CHOICE

1. ANS: A

2. ANS: D

3. ANS: C

4. ANS: A

5. ANS: D

6. ANS: A

PROBLEM

7. ANS:

8. ANS:

9. ANS:

10. ANS:

23


Objectives - Concept: OXYGENATION –

related to alterations in cardiovascular tissue perfusion and cardiac output

Use the nursing process as a framework for care of the patient with angina pectoris. Describe the nursing care of the patient who has had percutaneous coronary

interventional procedure for treatment of coronary artery disease. Discuss the indications, intended effects, and nursing implications of medications in

the care of adult patients with altered cardiovascular tissue perfusion related to

angina.

Use the nursing process as a framework for care of patients with heart failure. Topics covered in readings and theory class:

Theory: UNIT IIB - OXYGENATION – related to alterations in cardiovascular

tissue perfusion and cardiac output

Care of Patients with impaired cardiovascular tissue perfusion related to decreased

coronary perfusion

Exemplar: Care of patients with decreased coronary perfusion undergoing

diagnostic and interventional collaborative care

Theory: UNIT IIC - OXYGENATION – related to alterations in cardiovascular

tissue perfusion and cardiac output

Care of Patients with impaired cardiovascular tissue perfusion related to decreased

cardiac output.

Exemplar: Care of patients with impaired cardiovascular tissue perfusion

and decreased cardiac output related to Heart Failure.

Skills/Demonstration:


function (cont’d)

Assessment: Cardiac / Peripheral vascular/peripheral pulses

Role Play case studies: Deep vein thrombosis; pulmonary embolus


Critical Thinking – Medication Administration:

Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8


Intravenous Solution – Intravenous Heparin Therapy dosage protocol and calculation—

Med-Surg Nursing:



Care of the patient with Angina undergoing treatment of coronary artery disease.

Care of the patient with heart failure.

24

Week 4: Care of the patient with alterations in cardiovascular tissue perfusion and

cardiac output Examining associations: Read each analogy, then add the best response in the space provided: 1. The pulmonary artery : lungs :: Aorta : .

2. Epicardium : outer layer of cells ling the heart :: : the heart

muscle itself.

3. Apical area of the heart : fifth intercostals space :: Erb’s point : .

4. The first heart sound : closure of the mitral and tricuspid valves :: the second

heart sound : closure of .

5. Murmurs : malfunctioning valves :: friction rubs : . Exemplar: Care of the Patient with Chest Pain Mr. Anderson, a 45-year old executive with a major oil firm. Lately he has experienced frequent episodes of chest pressure that are relieved with rest. Today his pain was not relieved with rest. His wife called 911 and he is being evaluated in the ED.

1. Lumen narrowing with atherosclerosis is caused by:

a. Atheroma formation on the intima. b. Scarred endothelium. c. Thrombus formation. d. All of the above.

2. The pain of angina pectoris is produced primarily by:

a. Coronary vasoconstriction. b. Movement of thromboemboli. c. Myocardial ischemia. d. The presence of atheromas.

3. Mr. Anderson received sublingual nitroglycerin immediately ipon arrival to

the ED. The nurse informs him that this medication should work within:

a. 3 to 4 minutes. b. 10 to 15 minutes. c. 30 minutes. d. 60 minutes.

25

4. Mr. Anderson is given a beta-adrenergic blocker orally. This medication administration is based on the scientific rationale supporting this drug’s ability to:

a. Block sympathetic impulses to the heart. b. Elevate blood pressure. c. Increase myocardial contractility. d. Induce bradycardia.

5. Mr. Anderson is deemed a candidate for percutaneous coronary angioplasty

(PRCA) based on the extent of the coronary blockage. The procedure is performed on patients who:

a. Have compromised left ventricular function. b. Have had angina for more than 3 years. c. Have at lest 70% occlusion of a major coronary artery. d. Have questionable left ventricular function.

Exemplar: Care of the Patient with Heart Failure Match the type of ventricular heart failure listed in Column II with its associated pathophysiology in Column I by placing either an ―a‖’ or ―b‖ : Column I Column II

1. ____ Fatigability a. Left-sided heart failure

2. Dependent edema b. Right-sided heart failure

3. Pulmonary congestion predominates

4. _____ Distended neck veins

5. ______Ascites

6. ______Dyspnea from fluid in alveoli

7. _____ Orthopnea

8. ______Hepatomegly

9. _____Cough that may be blood-tinged

10. _____Nocturia

26

Multiple Choice:

1. The dominant function in cardiac failure is:

a. Ascites. b. Hepatomegaly. c. Inadequate tissue perfusion. d. Nocturia.

2. On assessment, the nurse knows that the presence of pitting edema indicates

fluid retention of at least: a. 4 lb. b. 6 lb. c. 8 lb. d. 10 lb.

3. The diagnosis of heart failure is usually confirmed by:

a. Chest x-ray. b. An echocardiogram. c. An electrocardiogram. d. Ventriculogram

4. A key diagnostic laboratory test for heart failure is the:.

a. Blood urea nitrogen (BUN). b. Complete blood count (CBC). c. B-type natriuretic peptide. (BNP). d. Serum electrolyte counts.

5. The goal of collaborative care for heart failure includes (Circle all that are

correct):

a. Decreasing oxygen needs of the heart. b. Increasing cardiac output by strengthening muscle contraction. c. Reducing the amount of circulating blood. d. Increasing cardiac output by decreasing peripheral vascular resistance.

6. The patient in congestive heart failure is often prescribed Digoxin, cardiac

glycoside that strengthens cardiac contraction and increases vagal tone. The nurse knows to check the Digoxin level prior to initiating or continuing Digoxin. A therapeutic digoxin level should be within:

a. 0.25 to 0.35 mg/mL b. 0.30 to 4.0 mg/mL c. 0.5 to 20. Mg/mL d. 2.5 to 4.9 mg/mL

27

Week 4 - Intravenous Heparin Therapy dosage protocol and calculation.

Problem

Complete the following advanced IV calculations. The problems and drug orders are presented for

practice only, and actual prescribed dosages will vary according to a patient’s age, condition,

reaction, additional medications, and other factors.

Compute the “watch count” flow rate for the following questions.

1. 1 L D5W with 10,000 U heparin to infuse at 1000 U/h


2. 1000 mL NS with 10,000 U heparin to infuse at 750 U/h


3. One of your patients has an IV that is flowing at a rate of 10 gtt/min. The IV bag contains a

solution of 500 mL NS with 20,000 U of heparin. The drop factor is 15 gtt/mL.

How many units is the patient receiving per 24 hours? __________ U/24h

The following questions refer to your patient who is on IV heparin therapy according to the “Standard

Weight Based Heparin Protocol” noted below. The patient weighs 144 pounds. On admission the

patient’s APTT is 30 seconds. You initiate IV heparin therapy at 1130 on 06/06/XX. Record your

answers in the spaces below unless provided with the “Standard Weight Based Heparin Protocol

Worksheet” by your instructor.

Standard Weight Based Heparin Protocol

For all patients on heparin drips:

1. Weight in KILOGRAMS. Required for order to be processed: ______ kg

2. Heparin 25,000 U in 250 mL of 1/2 NS. Boluses to be given as 1000 U/mL.

3. APTT q.6h or 6 hours after rate change; qd. after two consecutive therapeutic APTTs.

4. CBC initially and repeat every ______ day(s).

5. Obtain APTT and PT/INR on day one prior to initiation of therapy.

6. Guaiac stool initially then every ______ day(s) until heparin discontinued. Notify if

positive.

7. Neuro checks every ______ hours while on heparin. Notify physician of any

changes.

8. D/C APTT and CBC once heparin drip is discontinued unless otherwise ordered.

9. Notify physician of any bleeding problems.

10. Bolus with 80 U/kg. Start drip at 18 U/kg/h.

11. If APTT is 35 secs: Rebolus with 80 U/kg and increase rate by 4 U/kg/h

12. If APTT is 36–44 secs: Rebolus with 40 U/kg and increase rate by 2 U/kg/h

13. If APTT is 45–75 secs: Continue current rate

14. If APTT is 76–90 secs: Decrease rate by 2 U/kg/h

15. If APTT is 90 secs: Hold heparin for 1 hour and decrease rate by 3 U/kg/h

28

4. What is the patient’s weight as measured in kilograms? (Round to the nearest 10 kg.)

__________ kg

What does the protocol/sample orders indicate for the standard bolus dosage of heparin for this

patient?

__________ U/kg

5. Calculate the dosage of heparin that should be administered for the bolus for this patient.

__________ U

What does the protocol indicate as the required solution concentration (supply dosage) of heparin

to use for the bolus?

__________ U/mL

Calculate the dose volume of heparin that should be administered for the bolus for this patient.

__________ mL

6. What does the protocol/sample orders indicate for the initial infusion rate for this patient?

__________ U/kg/h

Calculate the dosage of heparin this patient should receive each hour.

__________ U/h

What does the protocol/sample orders indicate as the required solution concentration (supply

dosage) of heparin to use for the initial infusion?

__________ U/mL

29

Calculate the heparin solution volume this patient should receive each hour to provide correct

infusion for the patient’s weight.

__________ mL/h

7. According to the protocol/sample orders, how often should the patient’s APPT be checked?

q.h

At 1730, the patient’s APPT id 38 seconds, Rebolus with heparin

__________ U (__________ mL)

How much should you change the infusion rate?

__________ increase or __________ decrease heparin __________ U/h and __________ ml/h

The new infusion rate will be heparin __________ mL/h.

8. At 2345, the patient’s APPT is 46 seconds. What should you do now?

9. At 0600 0n 06/07/XX, the patient’s APPT is 50 seconds, what should you do now?

When should the APPT be checked again? __________ (hours) on __________ (date)

30

IV Heparin - Answer Section

PROBLEM

1. ANS:

2. ANS:

3. ANS:

31

Patient is receiving 40 mL/hour.

The patient is receiving 38,400 U/24 h.

4. ANS:

5. ANS:

6. ANS:

7. ANS:

6 h

8. ANS:

Maintain rate at 14 mL/h

9. ANS:

Maintain rate at 14 mL/h. Recheck APPT at 0600 on 06/08/XX

32

College Lab * – Week 5

*Although there is no formal college lab at Week 5, the following college lab

study guide is included for your use.

Objectives:

Use the nursing process as a framework for care of the patient with deep vein

thrombosis. Describe the nursing care of the patient with pulmonary embolism receiving heparin

therapy. Discuss the indications, intended effects, and nursing implications of heparin and

warfarin.

Use the nursing process as a framework for care of patients with peripheral vasculalr

disease.

Readings: Unit IIID – Concept: OXYGENATION – related to alterations in

cardiovascular tissue perfusion and cardiac output

Care of Patients with impaired cardiovascular tissue perfusion related to peripheral

vascular dysfunction

Exemplars: Care of patients with impaired cardiovascular tissue perfusion related

to venous thrombosis

Care of patients with impaired cardiovascular tissue perfusion related to

pulmonary embolism.

Unit IIIE - OXYGENATION – related to alterations in cardiovascular tissue

perfusion and cardiac output

Care of Patients with impaired cardiovascular tissue perfusion related to peripheral

vascular dysfunction

Exemplar: Care of patients with impaired cardiovascular tissue perfusion related to

Peripheral Arterial Occlusion.

Skills/Demonstration:


function (cont’d)

Assessment: Cardiac / Peripheral vascular/peripheral pulses

Role Play case studies: patients with peripheral arterial problems


Critical Thinking – Medication Administration

Brown, M. and Mulholland, J.A. (2008) Drug Calculations. (8th ed.) St. Louis: Elsevier Mosby.

Intravenous Solution – Intravenous Heparin Therapy dosage protocol and calculation—

Med-Surg Nursing:



Care of the Patient with venous thrombosis

Care of the patient with pulmonary embolism

Care of the patient with peripheral vascular problems

33

Week 5 – Care of the patient with alterations in cardiovascular tissue perfusion

and cardiac output related to venous thrombosis, pulmonary embolism, and

peripheral vascular problems.

Examplar: Care of the Patient with Venous thrombosis and Pulmonary Embolism:

Clinical Decision-making Guide: Chapter 34:

Page 275: Questions 1-42; 53, 54, 59, 63.

Answers page 700.

1. A significant cause of venous thrombosis is:

a. Altered blood coagulation.

b. Stasis of blood.

c. Vessel wall injury.

d. All of the above.

2. Clinical manifestations of deep vein obstruction include:

a. Edema and limb pain.

b. Ankle engorgement.

c. Leg circumference difference.

d. All of the above.

3. When administering heparin anticoagulant therapy, te nurse needs to

monitor the clotting time to make certain that it is within the therapeutic

range of:

a. One to two times the normal control.

b. Two to three times the normal control.

c. 3.5 times the normal control.

d. 4.5 times the normal control.

4. When caring for a patient who has started anticoagulant therapy with

warfarin (Coumadin), the nurse knows not to expect therapeutic benefits for:

a. At least 12hours.

b. The first 24 hours.

c. 2 to 3 days.

d. 3 to 5 days.

5. List the classic triad (Virchow’s) of factors associated with the development

of venous thromboembolism:

34

Exemplar: Care of the Patient with peripheral vascular disease:

1. The most important factor in regulating the caliber of blood vessels, which

determines resistance to flow, is:

a. Hormonal secretion.

b. Independent arterial wall activity.

c. The influence of circulating chemicals.

d. The sympathetic nervous system.

2. Clinical manifestations of acute venous insufficiency include all of the

following except:

a. Cool and cyanotic skin.

b. Initial absence of edema.

c. Sharp pain that may be relieved by the elevation of the extremity.

d. Numbness and tingling in the affected extremity.

3. Probably the strongest risk factor for the development of atherosclerotic

lesions is:

a. Cigarette smoking.

b. Lack of exercise.

c. Obesity.

d. Stress.

4. The hallmark symptom of peripheral arterial occlusive disease is:

5. List six clinical symptoms associated with acute arterial embolism:

35

Matching:

Match t he type of vessel insufficiency listed in column II with its associated

symptom listed in column I:

Column I Column II

1. ____Intermittent claudication. a. Arterial insufficiency.

2. ____Paresthesia. b. Venous insufficiency.

3. ____Dependent rubor.

4. ____Cold, pale extremity.

5. ____Ulcers of lower legs and ankles.

6. ____Muscle fatigue and cramping.

7. ____Diminished or absent pulses.

8. ____Reddish-blue discoloration with dependency.

36

Week 5 – Intravenous Heparin Therapy (cont’d)

IV Heparin Therapy

Heparin Medication Dosage Administration Questions - - for practice:

Bolus by Body weight:

5. A patient with deep vein thrombosis who weighs 163 pounds is ordered to have a

heparin bolus of 80 units per kg followed by an infusion. Calculate the dosage of the

heparin bolus to be administered.

6. A patient with a pulmonary embolism who weights 209 pounds is ordered to have a



Flow Rate:

1. The physician orders a continuous infusion of 25,000 units of heparin in 250 mL of

D5W at 600 units per hour. Please calculate the flow rate?

Ratio and proportion (extremes by the means):

37

2. An order read heparin 40,000 units in 1 L of D5W to infuse at 1,000 units/her.

Calculate the flow rate.

Units Per Hour:

3. A patient is receiving 20,000 units of heparin in 1,000 mL of D5W by continuous

infusion at 30mL/hr. What heparin dose is he receiving?

4. A patient is receiving 25,000 units of heparin in 500 mL NS by continuous infusion at

18 mL/hr. What heparin dose is he receiving?

38

ANSWER KEY: Try working the problem before checking the key

Bolus by Body weight:

5. A patient with deep vein thrombosis who weighs 163 pounds is ordered to have a



Step 1 – convert pounds to kilograms:

163 / 2.2 = 74 kgs.

Step 2 – calculate dose in units: 74 x 80 = 5920units

Step 3 – calculate mL dosage 1000U : 1ml :: 5920 u : X mL

1000U x XmL = 5920U

X mL = 5920 / 1000 = 5.9 mL bolus

6. A patient with a pulmonary embolism who weights 209 pounds is ordered to have a



Step 1 – Convert pounds to kgs 209 / 2.2 = 95 kg

Step 2 – Calculate dose in units: 95 x 90 = 8,550 units

Step 3 – Calculate mL dosage 1000U : 1 mL :: 8,550u : X mL

1000U x XmL = 8,550U

XmL = 8.55mL

39

Flow Rate:

1. The physician orders a continuous infusion of 25,000 units of heparin in 250 mL of

D5W at 600 units per hour. Please calculate the flow rate?

Ratio and proportion:

25,000 units : 250 mL :: 600 units : x mL (answer should be in mL/hr – using infusion

pump)

25,000 u x X = 600 units/hr x 250 mL

25,000 uX = 150,000

X = 150,000 / 25,000 = 6 mL/hr

2. An order read heparin 40,000 units in 1 L of D5W to infuse at 1,000 units/her.

Calculate the flow rate.

40,000 U : 1000 mL :: 1,000U x X mL

40,000U x X = 1000mL x 1,000u

40,000 U = 1,000,000

XmL = 1,000,000 / 40,000 = 25mL/hr

Units Per Hour:

3. A patient is receiving 20,000 units of heparin in 1,000 mL of D5W by continuous

infusion at 30mL/hr. What heparin dose is he receiving?

20,000 u : 1,000 :: XU : 30mL

1,000mL x XU = 20,000U x 30mL

1,000 x XU = 600,000

XU = 600,000 / 1,000 = 600units/hr

4. A patient is receiving 25,000 units of heparin in 500 mL NS by continuous infusion at

18 mL/hr. What heparin dose is he receiving?

25,000u : 500 mL :: XU : 18 mL/hr

500mL X = 25,000U x 18 mL/hr

500mL X = 450,000U

xU = 450,000 / 500 = 900units per hour

40

General Math Review

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

____ 1. A patient’s order for IV fluid states the D5W is to be infused. Which of the following IV fluids

should be given?

a. 5% Dextrose with Normal Saline c. 5% Dextrose with 0.45% Sodium Chloride

b. 5% Dextrose with Lactated Ringer’s

Solution

d. 5% Dextrose

____ 2. A patient’s order for IV fluid states that D5NS is to be infused. Which of the following IV fluids

should be given?

a. 5% Dextrose c. 5% Dextrose with 0.9% Sodium Chloride

b. 0.9% Sodium Chloride d. Lactated Ringer’s Solution

____ 3. What is the ratio of the weight of dextrose to the volume of IV fluid in D5W?

a. 5 grams of dextrose to 1 liter of IV fluid c. 5 milligrams of dextrose to 1 liter of IV

fluid

b. 5 milligrams of dextrose to 1 milliliter of

IV fluid

d. 5 grams of dextrose to 100 mL of IV fluid

Completion

Complete each sentence or statement.

Convert each of the given quantities to the equivalent unit indicated. Your answers must be in the

proper form for the metric, household, or apothecary system measurement requested in the question.

Convert each of the given quantities to the equivalent unit indicated.

4. 3500 g _____ kg

5. 125 mg _____ g

6. 250 mcg _____ mg

7. gr _____ mg

8. 15 t _____ mL

41

Short Answer

Draw an arrow to point to the volume that corresponds to the dose to be administered with the

given equipment.

9. Administer 0.75 mL

Identify the following, using the given label.

10. Dosage strength: _________________________

Identify the following, using the given label.

11. The supply dosage is __________ g per __________ mL.

42

Compute the amount of medication you will give to administer one dose of the following medication

orders. Assume all tablets are scored, when necessary. The problems and drug orders are presented

for practice only, and actual prescribed dosages will vary according to a patient’s age, condition,

reaction, additional medications, and other factors.

12. Order: Axid 0.15 g p.o. b.i.d.

Supply: Bottle containing 60 capsules of Axid, 150 mg per capsule

Give: __________ capsule(s)


medication orders. Round all parenteral administration orders that are over 1 mL to one decimal

place. Round all parenteral administration orders under 1 mL to two decimal places. Do not include

zeros at the end of decimal numbers. The problems and drug orders are presented for practice only,

and actual prescribed dosages will vary according to a patient’s age, condition, reaction, additional

medications, and other factors.

13. Order: Librium 30 mg IM q.6h p.r.n., anxiety

Supply: Librium 100 mg/2 mL

Give: __________ mL

Problem

Complete the following.

14. Arrange the following fractions from smallest to largest: , ,

Perform the indicated operations. Reduce fractions in answers to lowest terms.

15.

Decimal Fraction Percent Ratio

1. 0.05

2.

3. 45%

4.

16. Complete row 3 in the table above.

Solve for X. Round answers to two decimal places.

43

17.

Compute the amounts of solutes and solvents for the following solutions.

18. 200 mL of 50% betadine solution using stock betadine and NS

__________ mL stock betadine solution __________ mL NS

Explain how you would prepare the following formulas for the indicated time periods using the given

supplies.

19. Give 90 mL of strength Enfamil orally every 4 hours for one day.

Available supply is 6-ounce cans of Enfamil.

Use the following information:

A nurse needs to prepare strength Enfamil for several infants in the nursery. The supply is 8-ounce

cans of Enfamil.

20. How much sterile water should be mixed with each 8-ounce can of Enfamil in order to prepare

the strength solution?

For questions 11 through 15, specify the amount of diluent to add and the resulting solution

concentration. Calculate the amount to give and indicate the dose with an arrow on the

accompanying syringe. Finally, make a reconstitution label, if required.

21. Order: Tazidime 300 mg IM q.6h

Reconstitute with __________ mL diluent for a total solution volume of __________ mL with a

concentration of __________ mg/mL.

Give: __________ mL

44

22. Order: Kefzol 150 mg IM q.8h

Reconstitute with __________ mL diluent for a total solution volume of __________ mL with a

concentration of __________ mg/mL.

Give: __________ mL


medication orders. Round all parenteral administration orders that are over 1 mL to one decimal

place. Round all parenteral administration orders less than 1 mL to two decimal places. Do not

include zeros at the end of decimal numbers. The problems and drug orders are presented for practice

only, and actual prescribed dosages will vary according to a patient’s age, condition, reaction,

additional medications, and other factors.

23. Order: Claforan 1 g IM q.12h

Supply: Vial containing 6 mL of reconstituted Claforan, 330 mg/mL

Give: __________ mL

45

24. Order: cefazolin sodium 750 mg IM q.8h

Supply: 1 g vial of cefazolin sodium with instructions to add 2.5 mL of diluent to produce 3 mL

of medication supplying 330 mg/mL

Give: __________ mL


medication orders by using a proportion to obtain your answers.

Assume all tablets are scored, when necessary. Round all parenteral administration orders that are

over 1 mL to one decimal place. Round all parenteral administration orders under 1 mL to two

decimal places. Do not include zeros at the end of decimal numbers.


according to a patient’s age, condition, reaction, additional medications, and other factors.

25. Order: Amoxil 125 mg po. q.8h

Supply: Bottle of Amoxil (powdered medication) with the instructions to add 12 mL of water to

obtain a pediatric oral suspension of 50 mg/mL

Give: __________ mL

26. Order: Augmentin 375 mg po. q.8h

Supply: 75 mL bottle of reconstituted Augmentin, 250 mg/5 mL

Give: __________ mL

27. Order: thiamine HCl 20 mg IM t.i.d.

Supply: 10 mL multiple dose vial of vitamin B1 (thiamine HCl) 100 mg/mL

Give: __________ mL

28. Order: heparin 7500 U SC q.8h

Supply: heparin 10,000 U/mL

Give: __________ mL

Compute the requested information. Round all parenteral administration orders that are over 1 mL to

one decimal place. Round all parenteral administration orders under 1 mL to two decimal places. Do

not include zeros at the end of decimal numbers.


according to a patient’s age condition, reaction, additional medications, and other factors.


A pediatrician has ordered Ampicillin 50 mg/kg/day p.o. divided q.6h for a child who weighs 44 lb.

46

29. How many teaspoons should the child’s parent administer per dose? __________ t


The recommended dosage of Rocephin is 50 to 100 mg/kg/day divided into two equal doses. The

physician has ordered Rocephin 200 mg IM b.i.d. for a child who weighs 5000 g. The Rocephin

vial contains 1 g of medication that must be reconstituted with 3.6 mL of diluent to yield 1 g/4

mL.


receive per day.


Calculate the weight of solutes in the following IV solutions, and identify the solutes.

31.1 liter of NS contains __________ of __________

(weight) (solute)

The following IV orders will be regulated by electronic infusion devices. Calculate the flow rates of

the IV fluids in mL/h. The problems and drug orders are presented for practice only, and actual

prescribed dosages will vary according to a patient’s age, condition, reaction, additional medications,

and other factors.

32. 2 L D5W IV to infuse in 24 hours by infusion pump Flow rate: __________ mL/h

The following IV orders will be regulated manually. Calculate the flow rate of the IV fluid in

gtt/min.

33. 50 mL NS with antibiotic IV to infuse in 20 minutes


A patient’s IV flow needs to be checked frequently so that any adjustments in rate will be small. The

allowable percent of change varies according to the institution’s policy, patient’s condition, and other

factors. For this problem set only, assume that the patient’s flow rate may be reset if the maximum

variation from the physician’s order is not more than 25%. Compute the percent of variation before

resetting IV flow rates, and indicate either the new flow rate you will set or the appropriate action you

will take.

The following IV order will be regulated manually.

1000 mL D5W IV to infuse in 8 hours

The drop factor is 15 gtt/mL.

47

34. After 6 hours, 200 mL of IV fluid remains. If necessary and if allowable, reset the IV so that it is

completed on time.

What would the adjusted rate have to be? Adjusted rate, is allowable: __________ gtt/min

Determine the BSA for each of the following children using the BSA computation formulas given in

the textbook. Include two decimal places with your answers.

35. Tommy, who is 35 inches tall and weighs 40 lbs

Compute the daily rate of pediatric maintenance fluids for the following children, using the following

guidelines:

100 mL/kg/day for the first 10 kg of body weight

50 mL/kg/day for the next 10 kg of body weight

20 mL/kg/day for each kg above 20 kg of body weight

36. Reggie, who weighs 24 kg __________ mL/day

37. A patient’s order for Pepcid states that she should receive an IV bolus of 20 mg Pepcid diluted in

NS to a total volume of 10 mL which is to be injected over 2 minutes. The supply is Pepcid 10

mg/mL.

Compute the volume of Pepcid and the volume of NS.

Pepcid: __________ mL NS: __________ mL

48

The following questions refer to your patient who is on IV heparin therapy according to the “Standard

Weight Based Heparin Protocol” noted below. The patient weighs 144 pounds. On admission the

patient’s APTT is 30 seconds. You initiate IV heparin therapy at 1130 on 06/06/XX. Record your

answers in the spaces below unless provided with the “Standard Weight Based Heparin Protocal

Worksheet” by your instructor.

Standard Weight Based Heparin Protocol

For all patients on heparin drips:

1. Weight in KILOGRAMS. Required for order to be processed: ______ kg

2. Heparin 25,000 U in 250 mL of 1/2 NS. Boluses to be given as 1000 U/mL.

3. APTT q.6h or 6 hours after rate change; q.d. after two consecutive therapeutic

APTTs.

4. CBC initially and repeat every ______ day(s).

5. Obtain APTT and PT/INR on day one prior to initiation of therapy.

6. Guaiac stool initially then every ______ day(s) until heparin discontinued. Notify if

positive.

7. Neuro checks every ______ hours while on heparin. Notify physician of any

changes.

8. D/C APTT and CBC once heparin drip is discontinued unless otherwise ordered.

9. Notify physician of any bleeding problems.

10. Bolus with 80 U/kg. Start drip at 18 U/kg/h.

11. If APTT is 35 secs: Rebolus with 80 U/kg and increase rate by 4 U/kg/h

12. If APTT is 36–44 secs: Rebolus with 40 U/kg and increase rate by 2 U/kg/h

13. If APTT is 45–75 secs: Continue current rate

14. If APTT is 76–90 secs: Decrease rate by 2 U/kg/h

15. If APTT is 90 secs: Hold heparin for 1 hour and decrease rate by 3 U/kg/h

38. According to the protocol/sample orders, how often should the patient’s APPT be checked?

q.__________h

At 1730, the patient’s APPT id 38 seconds, Rebolus with heparin

__________ U (__________ mL)

How much should you change the infusion rate?

__________ increase or __________ decrease heparin __________ U/h and __________ ml/h

The new infusion rate will be heparin __________ mL/h.

49

General Review

Answer Section

MULTIPLE CHOICE

1. ANS: D

2. ANS: C

3. ANS: D

COMPLETION

4. ANS: 3500 g 3500 ÷ 1000 3.5 kg

5. ANS: 125 mg 125 ÷ 1000 0.125 mg

6. ANS: 250 mcg 250 ÷ 1000 0.25 mg

7. ANS: gr

8. ANS: 15 t 15 × 5 75 mL

SHORT ANSWER

9. ANS:

10. ANS:

6.5 mg per capsule

11. ANS:

2% = 2 g per 100 mL

12. ANS:

13. ANS:

PROBLEM

14. ANS:

, ,

50

15. ANS:

16. ANS:

0.45, , 9:20

17. ANS:

Rounded to two decimal places, X = 0.63

18. ANS:

19. ANS:

20. ANS:

strength 1 part Enfamil to 4 parts of solution

4 parts solution 1 part Enfamil 3 parts sterile water

3 parts sterile water ounces of sterile water.

51

21. ANS:

Reconstitute with 1.5 mL diluent for a total solution volume of 1.8 mL with a concentration of

280 mg/mL.

22. ANS:

Reconstitute with 2.5 mL diluent (sterile water for injection) for a total solution volume of 3 mL

with a concentration of 330 mg/mL.

23. ANS:

24. ANS:

25. ANS:

26. ANS:

27. ANS:

28. ANS:

29. ANS:

52

30. ANS:

per day, minimum

per day, maximum

31. ANS:

NS = 0.9% sodium chloride

= 0.9 g sodium chloride per 100 mL of solution

1 liter of NS contains 9 g of sodium chloride

32. ANS:

2 L = 2000 mL

33. ANS:

34. ANS:

53

35. ANS:

BSA

36. ANS:

37. ANS:

10 mL total IV solution 2 mL Pepcid solution 8 mL NS.

38. ANS:

6 h

54

Answers to Critical Thinking and Case Study Questions:

Week 1 Answers:

1. List 7 possible causes of Atelectasis:

Effects of anesthesia or analgesia; supine positioning; chest wall splinting because of

pain; abdominal distention; abdominal obesity; retained secretions; reduced lung

volumes due to musculoskeletal or neurologic disorders.

2. List 7 possible clinical manifestations of Atelectasis:

Dyspnea, cough, sputum production, tachycardia; tachypnea; pleural pain; central

cyanosis

3. List 7 nursing interventions that can be used to prevent Atelectasis:

Frequent turning; early mobilization; coughing & deep breathing; incentive

spirometry; suctioning; postural drainage; aerosol nebulizer treatments; chest

percussion.

4. The diagnosis of hospital-acquired pneumonia is usually associated with the

presence of one of three conditions:

1. Impaired host defenses

2. Inoculum of organisms that reach the lower respiratory tract.

3. Presence of a highly virulent organism.

5. Name three common pathogens that cause community acquired pneumonia:

1. Streptococcus pneumoniae

2. Haemophilus influenza

3. Staphylococcus aureus

6. Pneumonia tends to occur in patients with one or more of these underlying

disorders:

1. Alcoholism; 2. COPD; 3. AIDS; 4. diabetes mellitus;

5. heart failure

7. Three complications of pneumonia include:

1. Hypotension

2 Shock

3 Respiratory failure

55

Week 2 Answers:

1. Chronic airway inflammation in COPD results in:

Chronic inflammation that results in the following: increased goblet cells and

enlarged submucosal glands (proximal airways), inflammation and airway

narrowing (peripheral airways), and a narrowing of the airway lumen.

2. Define the term emphysema:

Emphysema is an abnormal distention of the air spaces, beyond the terminal

bronchioles, that results in destruction of the walls of the alveoli.

3. A genetic risk factor for COPD is:

A deficiency in alpha-antitrypsin, an enzyme inhibitor that protects the lungs.

4. Primary symptoms associated with the progressive disease of

obstructive lung disease are:

Chronic cough, sputum production, and dyspnea on exertion.

5. List major factors that determine the clinical course and survival of patients

with obstructive lung disease:

History of cigarette smoking; passive smoking exposure; age; rate of decline in

FEV1; hypoxemia; weight loss; reversibility of airflow obstruction; pulmonary

artery pressure; and resting heart rate.

6. The singe most cost effective intervention to reduce the risk for developing

COPD or slow its progression is:

Cessation of smoking

7. List three ways that bronchodilators relieve bronchospasm:

Alter smooth muscle tone; reduce airway obstruction; improve alveolar ventilation.

8. Primary causes for an acute exacerbation of COPD are:

Tracheobronchial infection; air pollution.

56

9. To help prevent infections in patients with COPD, the nurse should

recommend vaccination against two organisms:

Streptococcus pneumoniae; Haemophilus influenzae

10. The most common symptoms of asthma include:

Allergy; cough; wheezing; dyspnea

11. Complications of asthma include:

Status asthmaticus; respiratory failure; pneumonia, Atelectasis

Emphysema Case Study: (correct answers highlighted):

Maria, who has had emphysema for 25 years, is admitted to the hospital with a diagnosis

of bronchitis.

1. During assessment, the nurse notes the presence of a “barrel chest”’, which the

nurse knows is caused by:

a. A compensatory expansion of the bronchial airway.

b. A decrease in intrapleural pressure,

c. Air trapping‖ in the lungs.*

d. A progressive increase in vital capacity.

2. The nurse recognizes the need to be alert for the major presenting symptom

of emphysema, which is:

a. Bradypnea.

b. Dyspnea.*

c. Expiratory wheezing.

d. Fatigue.

3. Arterial blood gas measurements that are consistent with a diagnosis of

emphysema are:

a. pH 7.32; paO2 70mm Hg; PaCO2 50 mm Hg.*

b. pH7.37; PaO2 90 mmHg; PaCO2 42 mm Hg.

c. pH 7.39; PaO2 80 mm Hg; PaCO2 35 mm Hg.

d. pH 7.40; PaO2 85 mmHg; PaCO2 42 mm Hg.

4. Oxygen is prescribed for Maria. The nurse knows that the most effective

delivery system is:

a. A rebreathing bag that delivers oxygen at a concentration grater than 60%.

b. An oxygen mask set at 8 L/min.

c. A nasal cannula set at 6l/MIN.

d. A Venturi mask that delivers a predictable oxygen flow at about 24%.*

57

5. In planning care for Maria, which interventions are best to implement? (Select

all that apply)

a. Provide rest periods between activities, such as bathing, meals, and

ambulation.*

b. Place the patient in a supine position after meals to allow for rest.

c. Schedule drug administration around routine activities to increase

adherence to drug therapy.*

d. Arrange chairs in strategic locations to allow the patient to walk and

rest.*

e. Encourage the patient to have an annual flu vaccination. *

58

Week 3 Answers:

Week 3: Exemplar: Care of the Patient with cardiovascular risk factors –

hypertension.

1. Blood pressure is the product of cardiac output (CO) multiplied by

peripheral resistance (PVR).

2. Cardiac output is the product of heart rate (HR) multiplied by stroke

volume (SV).

3. Prolonged hypertension can cause significant damage to blood vessels in

four ―target organs‖:

Heart, kidneys, brain, eyes

4. List serious consequences prolonged, uncontrolled hypertension on the body

and its systems:

Myocardial infarction, heart failure, renal failure, stroke, impaired vision, left

ventricular hypertrophy.

5. Give examples of conditions that can trigger a hypertensive emergency in

which blood pressure must be immediately lowered:

Acute myocardial infarction, a dissecting aortic aneurysm, intracranial

hemorrhage, hypertension associated with pregnancy.

6. List 7 modifiable risk factors for coronary artery disease:

Hyperlipidemia, cigarette smoking, obesity, hypertension, diabetes mellitus,

metabolic syndrome, physical inactivity.

7. Management of coronary artery disease requires a therapeutic range of

cholesterol and lipoproteins.

An acceptable blood level of total cholesterol is less than 200 mg/dL, with an

LDL/HDL ratio of 3.5 to 1. T

The desired level of LDL should be less than 100 mg/dL, and

the HDL level should be greater than 60 mg/dL.

Triglycerides should be less than 150 mg/dL.

59

Case Study: George, a 45 year old has primary hypertension after serial blood

pressure readings average 150/98.

1. Renal pathology associated with hypertension can be identified by:

e. Urine output greater than 2,000 mL in 24 hours.

f. A urine specific gravity of 1.005.

g. Hyponatremia and decreased urine osmolality.

h. Increased blood urea nitrogen and creatinine levels.*

6. Health education for George includes advising him to:

e. Adhere to his dietary regimen.

f. Become involved in a regular of exercise.

g. Take all medication as prescribed.

h. Do all of the above.*

7. George was prescribed the following angiotensin-converting enzyme (ACE)

inhibitor, which has a rapid onset of action within 15 minutes.

e. Altace

f. Capoten*

g. Lotensin

h. Vasotec

8. An example of a potassium-sparing diuretic tat might be prescribed later in

the treatment of hypertension includes:

e. Spironolactone (Aldactone)*

f. Mykrox

g. Zaroxolyn

h. Furesomide (Lasix)

9. The nurse is assessing for postural hypotension recognizes that the following

is a positive sign:

e. A heart rate of 5 to 20 beats per minute (bpm) above the resting rate

f. A n unchanged diastolic blood pressure

g. An increase of 10mm Hg reading*

h. An decrease of 5 mm Hg reading

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Care of the patient with coronary artery disease:

4. An example of a beta blocker, administered to decrease automaticity, is

frequently prescribed for patients with coronary artery disease includes:

e. Cardizem

f. Cordarone

g. Metoprolol (Lopressor)*

h. Rythmol

5. A non-modifiable risk factor for atherosclerosis is:

e. Stress

f. Obesity

g. Positive family history*

h. Hyperlipidemia

6. The first heart sound is generated by:

e. Closure of the aortic valve

f. Closure of the atrioventricular valves*

g. Opening of the atrioventricular vales

h. Opening of the pulmonic valve

Match the terminology associated with coronary atherosclerosis in column II with

its function/characteristic listed in column I:

Column I:

1. d - A principal blood lipid

2. g - A risk factor that causes pulmonary damage

3. a - The functional lesion of atherosclerosis

4. f - Biochemical substances, soluble in fat, that accumulate within a blood

vessel.

5. h - A risk factor that is endocrine in origin.

6. j - A risk factor associated with type A personality

7. b - A risk factor related to weight gain.

8. i - A recommended dietary restriction that is a risk factor for heart disease

9. c - A symptom of myocardial ischemia

10. e - A lifestyle habit that is considered a modifiable risk factor for heart

disease

Column II

a. Atheroma e. Inactivity i. Fat

b. Obesity f. Lipids j. stress

c. Chest pain g. Smoking

d. cholesterol h. diabetes mellitus

61

Week 4 Answers:

Examining associations: Read each analogy, then add the best response in the space provided: 6. The pulmonary artery : lungs :: Aorta : arterial system through the body

.

7. Epicardium : outer layer of cells lining the heart :: Myocardium : the heart muscle itself.

8. Apical area of the heart : fifth intercostal space :: Erb’s point : 3

rd intercostal

space.

9. The first heart sound : closure of the mitral and tricuspid valves :: the second

heart sound : closure of the aortic and pulmonic valve.

10. Murmurs : malfunctioning valves :: friction rubs : abrasion of the

pericardial surfaces. Exemplar: Care of the Patient with Chest Pain Mr. Anderson, a 45-year old executive with a major oil firm. Lately he has experienced frequent episodes of chest pressure that are relieved with rest. Today his pain was not relieved with rest. His wife called 911 and he is being evaluated in the ED.

6. Lumen narrowing with atherosclerosis is caused by:

e. Atheroma formation on the intima. f. Scarred endothelium. g. Thrombus formation. h. All of the above.*

7. The pain of angina pectoris is produced primarily by:

e. Coronary vasoconstriction.* f. Movement of thromboemboli. g. Myocardial ischemia. h. The presence of atheromas.

8. Mr. Anderson received sublingual nitroglycerin immediately ipon arrival to

the ED. The nurse informs him that this medication should work within:

e. 3 to 4 minutes.* f. 10 to 15 minutes. g. 30 minutes. h. 60 minutes.

62

9. Mr. Anderson is given a beta-adrenergic blocker orally. This medication

administration is based on the scientific rationale supporting this drug’s ability to:

e. Block sympathetic impulses to the heart.* f. Elevate blood pressure. g. Increase myocardial contractility. h. Induce bradycardia.

10. Mr. Anderson is deemed a candidate for percutaneous coronary angioplasty

(PRCA) based on the extent of the coronary blockage. The procedure is performed on patients who:

e. Have compromised left ventricular function. f. Have had angina for more than 3 years. g. Have at lest 70% occlusion of a major coronary artery.* h. Have questionable left ventricular function.

Exemplar: Care of the Patient with Heart Failure Match the type of ventricular heart failure listed in Column II with its associated pathophysiology in Column I by placing either an ―a‖’ or ―b‖ : Column I Column II

1. __a__ Fatigability a. Left-sided heart failure

2. b Dependent edema b. Right-sided heart failure

3. a Pulmonary congestion predominates

4. __b___ Distended neck veins

5. __b__ Ascites

6. __a___Dyspnea from fluid in alveoli

7. _a___ Orthopnea

8. __b___Hepatomegly

9. __a___Cough that may be blood-tinged

10. __b___Nocturia

63

Multiple Choice:

7. The dominant function in cardiac failure is:

e. Ascites. f. Hepatomegaly. g. Inadequate tissue perfusion.* h. Nocturia.

8. On assessment, the nurse knows that the presence of pitting edema indicates

fluid retention of at least: e. 4 lb. f. 6 lb. g. 8 lb. h. 10 lb.*

9. The diagnosis of heart failure is usually confirmed by:

e. Chest x-ray. f. An echocardiogram.* g. An electrocardiogram. h. Ventriculogram

10. A key diagnostic laboratory test for heart failure is the:.

e. Blood urea nitrogen (BUN). f. Complete blood count (CBC). g. B-type natriuretic peptide. (BNP).* h. Serum electrolyte counts.

11. The goal of collaborative care for heart failure includes (Circle all that are

correct):

e. Decreasing oxygen needs of the heart.* f. Increasing cardiac output by strengthening muscle contraction.* g. Reducing the amount of circulating blood.* h. Increasing cardiac output by decreasing peripheral vascular resistance.*

12. The patient in congestive heart failure is often prescribed Digoxin, cardiac

glycoside that strengthens cardiac contraction and increases vagal tone. The nurse knows to check the Digoxin level prior to initiating or continuing Digoxin. A therapeutic digoxin level should be within:

e. 0.25 to 0.35 mg/mL f. 0.30 to 4.0 mg/mL g. 0.5 to 2.0 mg/mL* h. 2.5 to 4.9 mg/mL

64

Week 5 Answers – Care of the patient with alterations in cardiovascular tissue

perfusion and cardiac output related to venous thrombosis, pulmonary embolism,

and peripheral vascular problems.

Examplar: Care of the Patient with Venous thrombosis and Pulmonary Embolism:

Clinical Decision-making Guide: Chapter 34:

Page 275: Questions 1-42; 53, 54, 59, 63.

Answers page 700.

6. A significant cause of venous thrombosis is:

a. Altered blood coagulation.

b. Stasis of blood.

c. Vessel wall injury.

d. All of the above.*

7. Clinical manifestations of deep vein obstruction include:

a. Edema and limb pain.

b. Ankle engorgement.

c. Leg circumference difference.

d. All of the above.*

8. When administering heparin anticoagulant therapy, te nurse needs to

monitor the clotting time to make certain that it is within the therapeutic

range of:

a. 1 to 1.5 times the normal control.

b. 1.5 to 2.5 times the normal control.*

c. 3.5 times the normal control.

d. 4.5 times the normal control.

9. When caring for a patient who has started anticoagulant therapy with

warfarin (Coumadin), the nurse knows not to expect therapeutic benefits for:

a. At least 12hours.

b. The first 24 hours.

c. 2 to 3 days.

d. 3 to 5 days.*

10. List the classic triad (Virchow’s) of factors associated with the development

of venous thromboembolism: venous stasis, vessel wall injury, altered blood

coagulation.

65

Exemplar: Care of the Patient with peripheral vascular disease:

6. The most important factor in regulating the caliber of blood vessels, which

determines resistance to flow, is:

e. Hormonal secretion.

f. Independent arterial wall activity.

g. The influence of circulating chemicals.

h. The sympathetic nervous system.*

7. Clinical manifestations of acute venous insufficiency include all of the

following except:

e. Cool and cyanotic skin.

f. Initial absence of edema.*

g. Sharp pain that may be relieved by the elevation of the extremity.

h. Numbness and tingling in the affected extremity.

8. Probably the strongest risk factor for the development of atherosclerotic

lesions is:

e. Cigarette smoking.*

f. Lack of exercise.

g. Obesity.

h. Stress.

9. The hallmark symptom of peripheral arterial occlusive disease is:

Intermittent claudication

10. List six clinical symptoms associated with acute arterial embolism:

Pain, pallor, pulselessness, paresthesia, poikilothermia (coldness), and paralysis.

66

Matching:

Match t he type of vessel insufficiency listed in column II with its associated

symptom listed in column I:

Column I Column II

9. a - Intermittent claudication. a. Arterial insufficiency.

10. b - Paresthesia. b. Venous insufficiency.

11. a- Dependent rubor.

12. a - old, pale extremity.

13. b - Ulcers of lower legs and ankles.

14. a - Muscle fatigue and cramping.

15. a - Diminished or absent pulses.

16. a - Reddish-blue discoloration with dependency.

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College Lab – Week 1 – Week of 1/16/06 College Lab -- Week 1 Objectives - Concept: OXYGENATION : related to alterations in pulmonary ventilation and diffusion Use assessment parameters